Hi Tim
here are some values for you for PAL 720 X 576 I @ 50 (25 fps) uncompressed no audio
RGB 10 bit is 41.57 MB per second
RGBA 8 bit is also 41.57 MB per second
RGB 8 bit is 31.10 MB per second
V210 ( 10 bit YUV is 27.65 MB Per second
NTSC is slightly higher in some modes
Add audio, in this case a stereo pair embedded in the file is gets a little higher.
If you disagree with this I am quite happy to give you the formula to calculate these values if you wish?
When you capture an uncompressed clip via premier pro with v210 10 bit yuv (via the Bluefish444 card) and capture a clip of exact duration in the DV AVI capture mode, the clip is 1/10th give or take or a ratio of 1:10
If 1:8 makes you happy then fine, that is still a very good compression rate for a solution to capture from an uncompressed SD card either via 10/12 bit analog or SDI source.
If you wish I am quite happy to loan you a card and you can find out for your self and publish what every results you find.
Just let me know and I can put you in contact with our representatives in your region.
All the best.